Machine for spinning irregular forms



(No Model.)

J. BROWNING. MACHINE POR SPINNING IRREGULAR FORMS.

No. 426,235. Patented Apr. 22. 1890.

UNITED STATES PATENT OFFICE.

JOSEPII BROWlNING, OF PHILADELPHIA, PENNSYLVANIA.

MACHINE FOR SPINNING IRREGULAR FORMS.

SPECIFICATION forming part of Letters Patent No. 426,235, dated April 22, 1890. Application led January 22, 1890. Serial No. 337,674. (No model.)

T0 all whom t may concern,.-

Be it known that 1, JOSEPH BROWNING, of the city and county of Philadelphia, and State of Pennsylvania, have invented an Improvement in Machines for Spinning Irregular Forms, of which the following is'a speciiication.

My invention has reference to machines for spinning irregular forms, especially adapted to handles; and it consists of certain improvements, which are fully set forthv in the following specification and shown in the accompanying drawings, which form a part thereof.

In Letters Patent No. 417,226, dated December 17, 1889, granted to me, is set out a form of spinning-machine for spinning spiral work in which the work gradually increases in the form of a taper or is cylindrical, and also in my application, Serial N o. 334,210, filed December 18, 1889, I have described a modification of such machine for substantially similar Work.

My present improvement relates to the same general class of machinery; but is especially adapted for spinning forms having irregular curves, and in which the spiral varies in its pitch.

My invention will best be understood by reference to the accompanying drawings, in which- Figure 1 is a plan View of a machine embodying my invention. Fig. 2 is a cross-sectional elevation of same. Fig. 3 is a front View of one of the cams for operating the frame holding the spinning-wheel. Fig. t is a perspective View showing one form of blank before being spun. Fig. 5 is a similar view showing the blank after having been finished on the machine. Fig. G is a sectional elevation of a mandrel adapted for use in connection with my improved machine, and Fig. 7 is a cross-sectional view of same on line y y.

A is the main frame of the machine, and A is a frame which may be adjustably secured thereon by means of bolts a., so as to permit a certain amount of lateral adjustment of the cams O and M, which are carried thereon. The main frame A carries the spindle B, which may be rotated or not by a pulleywheel l), and also carries a center C, of any ordinary construction.

D represents the tubular piece of metal to be spun, and is held between the parts B and O. IVhen this tubular part D is to positively" rotate, then it is held in a chuck on the spindle B, (indicated in dotted lines,) and is rotated by the action of the pulley l).

The frame A is provided With longitudinal guides E', upon which slides the carriage E, said carriage being moved parallel to the spindle B and center O by means of the screw F, operated by the hand-wheel G. The ,c arriage E is provided with a transverse guide e, in which works a tool-support L, having` the upright guide K, upon which 4a frame .I slides, said frame carrying the spinning-Wheel Il, which may be rotated by a shaft I. This spinning-wheel H may be of any desired shape, that shown being especially adapted for the class of Work indicated at D in Fig. 5, and consists of a conical wheel having sp1- ral grooves which vary in pitch.

O is a cam in which a roller N works on the tool-support L, so that as the carriage E is :moved transversely the toolsupport is moved to and from the work. In addition to the cam O there is a cam-surface M, which is shown in elevation in Fig. 3, which cam acts upon the frame .I and causes it to rise or fall during its movement over the length of the 'piece D. It will now be understood that upon moving the hand-wheel G the spinning-tool H is moved laterally, or parallel to the axis of the part- D, and also vertically and transversely with respect to said axis, and simultaneously with these two actions the said spinning-tool 1I is moved to or from the said axis, the three movements being necessary to enable the said spinning-tool to form a spiral of varying pitch, such as indicated in Fig. 5. The spinning-tool has its grooves or configuration made to correspond to the varying pitch in the tubular piece of metal being operated upon. The tubular piece should be placed over a mandrel P, such as shown in Figs. 6 and 7, which, owing to the peculiar shape of the tubular piede, mustbe made in sections, so as to be removable from within it. As shown, this mandrel consists of a cylindrical center I, preferably slightly wedge` shaped, and the outer sections 2, which are held in position by the central portion, being driven between them.

IOO

I do not confine myself to any particular kind of mandrel, as that would vary according to the Work to be performed upon themachine.

While I have shown the machine as especially adapted for spinning the peculiar form of handle shown in Fig. 5, it is to be understood that the machine may, by the proper modification of the cams O and M, be used for any pattern of work where the diameter increases and where the spiral is supposed to increase or decrease in size and angle.

I do not confine myself to any particular location or specific construction of the parts herein set out, as they may be greatly modified to suit the idea of the machine-builder, and 'may be greatly varied Without in the least departing from the spirit of my invention.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a machine' for spinning irregular forms, the combination of a support for the Work, adapted to permit it to rotate, with a spinning-tool also adapted to rotate, mechanism for feeding said spinning-tool parallel to the axis of rotation of the Work, and also transversely to said axis of the work with a rising or falling movement.

2. In a machine for spinning irregular forms, the combination of a support for the work, adapted to permit it to rotate, with a spinning-tool also adapted to rotate, mechanism for feeding said spinning-tool parallel to the axis of rotation of the work and also transversely to said axis of the work, and power mechanism for positively rotating said spinning-tool.

3. In a machine for spinning irregular forms, the combination of a support for the Work, adapted to permit it to rotate, with a spinning-tool also adapted to rotate, mechanism for feeding said spinning-tool parallel to the axis of rotation of the work and also transversely to said axis of the work, power mechanism for positively rotating said spinningtool, and power mechanism for causing a positive relative rotation between the Work and the spinning-tool.

4. In a machine for spinning irregular shapes, the combination of a support for the work with provision for its rotation, a spinning-tool adapted to rotate on an axis transversely tothe axis of the Work, a frame for feedinglthe spinning-tool in a direction corresponding to the length of the'axis of the Work,

means for moving said frame, a tool-support carried upon said frame and movable to or from the Work, a cam to move said tool-support, a frame for moving the said spinningtool transversely with respect to the work and guided upon said tool-support, a cam for moving said tool-carrying frame.

5. In a machine for spinning irregular forms, the combination of a support for the work, whereby it may be rotated, with an irregularshaped spinning-tool, a supporting and guiding device for said spinning-tool, whereby it may be moved horizontally both parallel and transversely with respect to the axis of the Work and also vertically with respect to `said Work.

6. In a machine for spinning irregular forms, the combination of a support for the work, whereby it may be rot-ated,with an irregularshaped spinning-tool, a supporting and guiding device for said spinning-tool, whereby it may be moved horizontally both parallel and transversely with respect to said Work, and power mechanism for causing a positive rotation between the spinning-tool and Work.

c '7. Inamachineforspinningirregularforms, the combination of a support for the Work, whereby it may be rotated, a spinning-Wheel movable parallel with the axis of the Work and also transversely with respect to the same, frames for supporting the said movable spinning-wheels, and feeding devices for slowly feeding the spinning-wheel, frames substantially parallel to the axis of rotation of the work, and cam devices for imparting to the spinning-wheel a movement transversely to the axis of the Work.

In testimony of which invention I have hereunto set my hand.

JOSEPH BROVNING. Witnesses:

K. B. HUNTER, ERNEST HOWARD HUNTER. 

